diff --git a/stubs/CoreGenericClasses.phpstub b/stubs/CoreGenericClasses.phpstub
index 3fd64fb3a17..8e650083f18 100644
--- a/stubs/CoreGenericClasses.phpstub
+++ b/stubs/CoreGenericClasses.phpstub
@@ -586,7 +586,6 @@ class DateInterval
     /**
      * Is 1 if the interval is inverted and 0 otherwise
      * @var int
-     * @readonly
      */
     public $invert;